*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        :root {
            --primary: #1a3c34;
            --primary-light: #2a5c4a;
            --accent: #d4a030;
            --accent-light: #f0c860;
            --bg: #faf7f0;
            --card-bg: #ffffff;
            --text: #1e1e1e;
            --text-light: #4a4a4a;
            --border: #dcd4c4;
            --radius: 12px;
            --shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
            --font: 'Segoe UI', Roboto, system-ui, -apple-system, sans-serif;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: var(--font);
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            padding: 0 16px;
        }
        .wrapper {
            max-width: 1200px;
            margin: 0 auto;
            background: var(--card-bg);
            box-shadow: var(--shadow);
            border-radius: var(--radius);
            padding: 20px 24px 32px;
        }
        a {
            color: var(--primary-light);
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: var(--accent);
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            border-radius: var(--radius);
            display: block;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.3;
            margin-top: 1.6em;
            margin-bottom: 0.4em;
            color: var(--primary);
        }
        h1 {
            font-size: 2.4rem;
            margin-top: 0.4em;
            border-bottom: 4px solid var(--accent);
            padding-bottom: 12px;
            display: inline-block;
        }
        h2 {
            font-size: 1.8rem;
            border-left: 6px solid var(--accent);
            padding-left: 16px;
        }
        h3 {
            font-size: 1.35rem;
            color: var(--primary-light);
        }
        h4 {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--text-light);
        }
        p {
            margin-bottom: 1.2em;
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            gap: 6px 12px;
            font-size: 0.85rem;
            padding: 10px 0 6px;
            color: var(--text-light);
            border-bottom: 1px solid var(--border);
            margin-bottom: 16px;
        }
        .breadcrumb a {
            color: var(--primary-light);
        }
        .breadcrumb a:hover {
            color: var(--accent);
        }
        .breadcrumb .sep {
            color: #aaa;
        }
        .site-header {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            padding: 12px 0 8px;
            border-bottom: 2px solid var(--border);
            position: relative;
        }
        .my-logo {
            font-size: 1.9rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            display: inline-block;
        }
        .my-logo:hover {
            text-decoration: none;
            opacity: 0.85;
        }
        .my-logo small {
            font-size: 0.7rem;
            font-weight: 400;
            -webkit-text-fill-color: var(--text-light);
            color: var(--text-light);
            letter-spacing: 1px;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.8rem;
            color: var(--primary);
            cursor: pointer;
            padding: 4px 8px;
            border-radius: 6px;
            transition: background 0.2s;
        }
        .nav-toggle:hover {
            background: var(--border);
        }
        .nav-menu {
            display: flex;
            flex-wrap: wrap;
            gap: 4px 16px;
            align-items: center;
            list-style: none;
        }
        .nav-menu li a {
            font-weight: 500;
            font-size: 0.95rem;
            padding: 6px 8px;
            border-radius: 6px;
            transition: background 0.2s, color 0.2s;
            color: var(--text-light);
        }
        .nav-menu li a:hover {
            background: var(--accent-light);
            color: var(--primary);
            text-decoration: none;
        }
        .nav-menu li a i {
            margin-right: 6px;
            font-size: 0.85rem;
        }
        .header-search {
            display: flex;
            gap: 6px;
            align-items: center;
            background: var(--bg);
            border-radius: 40px;
            padding: 2px 4px 2px 14px;
            border: 1px solid var(--border);
            transition: border 0.2s;
            flex: 0 1 240px;
            min-width: 160px;
        }
        .header-search:focus-within {
            border-color: var(--accent);
        }
        .header-search input {
            border: none;
            background: transparent;
            padding: 8px 0;
            font-size: 0.9rem;
            outline: none;
            width: 100%;
            font-family: var(--font);
        }
        .header-search button {
            background: var(--primary);
            border: none;
            color: white;
            padding: 8px 16px;
            border-radius: 40px;
            font-size: 0.85rem;
            cursor: pointer;
            transition: background 0.2s;
            font-weight: 500;
            white-space: nowrap;
        }
        .header-search button:hover {
            background: var(--primary-light);
        }
        @media (max-width: 820px) {
            .nav-toggle {
                display: block;
            }
            .nav-menu {
                display: none;
                flex-direction: column;
                width: 100%;
                padding: 16px 0 8px;
                gap: 2px;
                border-top: 1px solid var(--border);
                margin-top: 12px;
            }
            .nav-menu.active {
                display: flex;
            }
            .nav-menu li a {
                display: block;
                padding: 10px 12px;
                font-size: 1rem;
                border-radius: 8px;
            }
            .header-search {
                flex: 1 1 100%;
                margin-top: 10px;
                max-width: 100%;
            }
            .site-header {
                gap: 8px;
            }
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            .wrapper {
                padding: 12px 14px 24px;
            }
            .two-col-grid {
                grid-template-columns: 1fr !important;
            }
            .feature-grid {
                grid-template-columns: 1fr !important;
            }
        }
        @media (max-width: 480px) {
            body {
                padding: 0 6px;
            }
            .wrapper {
                padding: 8px 10px 18px;
                border-radius: 8px;
            }
            h1 {
                font-size: 1.5rem;
            }
            .my-logo {
                font-size: 1.4rem;
            }
            .breadcrumb {
                font-size: 0.75rem;
                gap: 4px 8px;
            }
            .header-search input {
                font-size: 0.8rem;
                padding: 6px 0;
            }
            .header-search button {
                padding: 6px 12px;
                font-size: 0.75rem;
            }
        }
        .highlight-box {
            background: var(--bg);
            border-left: 4px solid var(--accent);
            padding: 16px 20px;
            border-radius: 0 var(--radius) var(--radius) 0;
            margin: 1.6em 0;
        }
        .highlight-box strong {
            color: var(--primary);
        }
        .two-col-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
            margin: 1.4em 0;
        }
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 16px;
            margin: 1.2em 0;
        }
        .feature-card {
            background: var(--bg);
            padding: 16px 18px;
            border-radius: var(--radius);
            border: 1px solid var(--border);
            transition: transform 0.2s, box-shadow 0.2s;
        }
        .feature-card:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
        }
        .feature-card i {
            color: var(--accent);
            font-size: 1.6rem;
            margin-bottom: 8px;
        }
        .feature-card h4 {
            margin-top: 0.2em;
        }
        .insight-badge {
            display: inline-block;
            background: var(--accent);
            color: var(--primary);
            font-weight: 700;
            font-size: 0.75rem;
            padding: 2px 12px;
            border-radius: 40px;
            letter-spacing: 0.5px;
            text-transform: uppercase;
        }
        .table-wrap {
            overflow-x: auto;
            margin: 1.4em 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.95rem;
            border-radius: var(--radius);
            overflow: hidden;
        }
        th {
            background: var(--primary);
            color: white;
            padding: 10px 14px;
            text-align: left;
            font-weight: 600;
        }
        td {
            padding: 10px 14px;
            border-bottom: 1px solid var(--border);
        }
        tr:nth-child(even) {
            background: var(--bg);
        }
        tr:hover td {
            background: #f5f0e6;
        }
        .comment-form,
        .score-form {
            background: var(--bg);
            padding: 20px 22px;
            border-radius: var(--radius);
            border: 1px solid var(--border);
            margin: 1.6em 0;
        }
        .comment-form textarea,
        .comment-form input,
        .score-form input,
        .score-form select {
            width: 100%;
            padding: 10px 14px;
            border: 1px solid var(--border);
            border-radius: 8px;
            font-family: var(--font);
            font-size: 0.95rem;
            background: white;
            transition: border 0.2s;
            margin-bottom: 12px;
        }
        .comment-form textarea:focus,
        .comment-form input:focus,
        .score-form input:focus,
        .score-form select:focus {
            border-color: var(--accent);
            outline: none;
        }
        .comment-form textarea {
            min-height: 100px;
            resize: vertical;
        }
        .btn {
            background: var(--primary);
            color: white;
            border: none;
            padding: 10px 28px;
            border-radius: 40px;
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
            font-family: var(--font);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn:hover {
            background: var(--primary-light);
            transform: scale(1.01);
        }
        .btn i {
            font-size: 0.9rem;
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 4px;
            font-size: 1.6rem;
            margin-bottom: 12px;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            color: #ddd;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: var(--accent);
        }
        .friend-link {
            display: block;
            padding: 18px 0 8px;
            border-top: 2px solid var(--border);
            margin-top: 24px;
        }
        .friend-link a {
            display: inline-block;
            margin: 4px 16px 4px 0;
            font-weight: 500;
            color: var(--primary-light);
        }
        .friend-link a:hover {
            color: var(--accent);
        }
        .copyright {
            text-align: center;
            padding: 16px 0 6px;
            font-size: 0.85rem;
            color: var(--text-light);
            border-top: 1px solid var(--border);
            margin-top: 12px;
        }
        .copyright strong {
            color: var(--primary);
        }
        .last-updated {
            font-size: 0.85rem;
            color: var(--text-light);
            margin-top: 8px;
            text-align: right;
            font-style: italic;
        }
        .img-caption {
            font-size: 0.85rem;
            color: var(--text-light);
            text-align: center;
            margin-top: 4px;
        }
        .toc {
            background: var(--bg);
            padding: 18px 22px;
            border-radius: var(--radius);
            border: 1px solid var(--border);
            margin: 1.2em 0 1.8em;
        }
        .toc summary {
            font-weight: 700;
            font-size: 1.1rem;
            cursor: pointer;
            color: var(--primary);
        }
        .toc ol {
            margin-top: 10px;
            padding-left: 24px;
            columns: 2 240px;
            column-gap: 32px;
        }
        .toc ol li {
            margin-bottom: 4px;
            break-inside: avoid;
        }
        .toc ol li a {
            color: var(--text-light);
        }
        .toc ol li a:hover {
            color: var(--accent);
        }
        @media (max-width: 600px) {
            .toc ol {
                columns: 1;
            }
            .two-col-grid {
                grid-template-columns: 1fr;
            }
        }
        blockquote {
            border-left: 4px solid var(--accent);
            padding: 12px 20px;
            margin: 1.2em 0;
            background: var(--bg);
            border-radius: 0 var(--radius) var(--radius) 0;
            font-style: italic;
            color: var(--text-light);
        }
        blockquote strong {
            color: var(--primary);
        }
        .pro-tip {
            background: #e8f0ed;
            border-radius: var(--radius);
            padding: 14px 20px;
            border: 1px dashed var(--primary-light);
            margin: 1.2em 0;
        }
        .pro-tip i {
            color: var(--accent);
            margin-right: 8px;
        }
        .faq-item {
            border-bottom: 1px solid var(--border);
            padding: 14px 0;
        }
        .faq-item summary {
            font-weight: 600;
            font-size: 1.05rem;
            cursor: pointer;
            color: var(--primary);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .faq-item summary i {
            color: var(--accent);
            font-size: 0.9rem;
        }
        .faq-item .answer {
            padding: 10px 0 4px 28px;
            color: var(--text-light);
        }